Find the value of $-7+9.1$−7+9.1.
Find the value of $4-6.1$4−6.1.
Find $-6\times0.8$−6×0.8, giving your answer as a decimal.
Find the value of $-2+1.9+7.3$−2+1.9+7.3.
Use properties and operations to understand the different forms of rational and irrational numbers.
Perform all four arithmetic operations and apply properties to generate equivalent forms of rational numbers and square roots.